-er -ey eee eef eeg eeo eep eer eey ef- efe eff efg efo efp efr ege egf egg ego egp egr egy eo- eoe eof eog eoo eop eor ep- epe epf epg epo epp epr ere erf erg ero erp err ery eye eyo eyp eyr fee fef feg feo fep fer fey ffe fff ffg ffo ffp ffr ffy fge fgf fgg fgp fgr foe fof fog foo fop for foy fpe fpg fpo fpp fpr fpy fre frf frg fro frp frr fry fy- fye fyo fyp g-p ge- gee gef geg geo gep ger gey gfe gff gfo gfp gfr gfy ggg ggo ggp ggr goe gof gog goo gop gor goy gpe gpf gpg gpo gpp gpr gre grf grg gro grp grr gry gy- gye gyf gyo gyp gyr oee oef oeg oeo oep oer oey of- ofe off ofg ofo ofp ofr oge ogf ogg ogo ogp ogy oo- oof oog ooo oop oor op- ope opf opg opo opp opr opy or- ore orf org oro orp orr ory oye oyo p-p pee pef peg peo pep per pey pfe pff pfg pfo pfp pfr pfy pge pgf pgg pgo pgp pgr pgy poe pof pog poo pop por poy ppe ppf ppg ppo ppp ppr pre prf prg pro prp prr pry py- pye pyf pyg pyo pyr re- ree ref reg reo rep rer rey rfe rff rfg rfo rfp rfr rge rgf rgg rgo rgp rgr roe rof rog roo rop ror roy rpe rpf rpg rpo rpp rpr rrf rrg rrp rrr ry- rye ryf ryg ryo ryr ryy yee yef yeg yeo yep yer yey yfe yff yfr ygo yoe yof yog yoo yop yor yoy ypf ypg ypo yre yrf yrg yro yrp yye yyf yyg yyy